SAN JOSE (CBS SF) — A person allegedly armed with an ax was fatally shot by San Jose police outside the Metcalf Energy Center on Tuesday evening, according to authorities.

The shooting happened around 5 p.m. at Metcalf Energy Center, which is owned by Calpine and powered by natural gas.

Shortly before 6 p.m., a San Jose Police Department spokesperson confirmed that units were at the South San Jose power plant at 1 Blanchard Road and that a person had been shot by a San Jose police officer.

Calpine describes this person as an ax-wielding man and an intruder.

In audio from the dispatch call, a police officer can be heard saying, “There is a large sword on the front seat. I can see that.”

Moments later, a police officer says to the dispatcher, “There’s an ax in his hand and he’s refusing to drop it.”

And then officers move in on the suspect. An officer fired and fatally shot the suspect.

The company confirmed the event with an intruder and law enforcement. It also said the plant operates around the clock, and all of its employees are safe.

In April 2013, nearby PG&E’s Metcalf substation came under attack.

In that incident, snipers fired more than 100 rounds into transformers and cut fiber optic AT&T phone lines, shutting off service to neighborhoods. It raised the alarm on the potential for terrorism and prompted tighter security the plant.

PG&E tweeted Tuesday night that they are aware of the situation and in touch with law enforcement. They made clear that Metcalf Energy Center is not owned or associated with PG&E, and that none of its facilities were involved in the shooting.